how can i correct this sentece to parallel structute? When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects.

Answer 1

This is the problem area in that sentence:

... it was both surprising and a revolution in its special effects.

surprising = participle, serving as an adjective
revolution = noun

You'll need to make them both adjectives or both nouns. There is no one right answer! Give it a try, and I'll check your work for you.